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  • No : 22360
  • Release Date : 2018/08/31 14:33
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How to select at Inverter circuit

How select the rated current for MCCBs/ELCBs installed at upstream inverter circuit.
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Basically you have to consider the effect of harmonic waves, but there are two ways as below.
1. Refer to the recommended rated current by inverter manufacturer.
2. Calculate a load current from power supply capacity described in inverter catalog or other materials, and consider 1.4 times of the value or more as the rated current. It may need 2 times or more ,depending on current waves (Distortion factor, Peak factor, Harmonic component).
Product Name
Molded Case Circuit Breakers

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